Abstract: A variable-diameter blade suitable for a trans-media aircraft. The blade is divided into a blade root section, telescopic sections, and a blade tip section in a direction from the root to the tip. The blade further includes a telescopic rod, the blade root section and the blade tip section are fixed to the telescopic rod, respectively, and the telescopic rod is fixed to the trans-media aircraft; a spring arranged in the telescopic rod, the spring is used to drive the telescopic rod to extend; a pulley installed on the trans-media aircraft, the pulley is closer to the blade root section; a pull rope, an end of the pull rope passes through an inside of the blade and is fixed to the blade tip section, and the other end of the pull rope is wound on the pulley; and a driving device for driving the pulley to rotate.

Abstract: The present application provides a data processing method, a category identification method and a computer device, in which, firstly, node information is screened out based on node edge data and feature information, that is, K first nodes with rich structures and high feature discrimination are located, and then a feature similarity is calculated based on relevant information of the first nodes. On the other hand, since a calculation amount of the feature similarity of the node is relatively small, for a case that model training and prediction of node category are completed at the same time, a second node can include a node to be classified, and a model parameter used in category prediction is obtained by performing parameter iterative updating with taking the node to be classified as an unlabeled node.

Abstract: A transplanting robot applicable to a greenhouse includes a walking device and planting devices; the walking device includes a chassis, a driving assembly mounted on the chassis, and several walking leg modules arranged on two sides of the chassis; each walking leg module is provided with the planting device that moves synchronously with the walking leg module; the driving assembly is provided with a walking motor; and the walking motor outputs power to two transmission shafts through a transmission assembly and two independent electromagnetic clutches. When any electromagnetic clutch is turned on, the corresponding transmission shaft outputs, through transmission gears on the transmission shaft, power to the walking leg module connected to the electromagnetic clutch.

Abstract: Disclosed is a method for evaluating the underground hydrogen storage (UHS) capacity in porous media of depleted gas reservoirs using CO2 as cushion gas, including the following steps: S1: obtaining physical parameters required for UHS capacity evaluation based on geological and production data of the target depleted gas reservoir; S2: calculating the cap-rock breakthrough pressure and fault-slip pressure of the UHS based on the cap and fault properties of the target depleted gas reservoir to further estimate the highest operating pressure of the UHS; S3: developing the H2—CO2—CH4 multi-component material balance equation in underground porous media by considering the dissolution of three components in formation water; S4: substituting the parameters obtained from S1 and S2 into the multi-component material balance equation to calculate the proportion of different gas components in the pore space to finally determine the UHS capacity of the target depleted gas reservoir.

Abstract: Disclosed is a method for evaluating the underground hydrogen storage (UHS) capacity in porous media of depleted gas reservoirs using CO2 as cushion gas, including the following steps: S1: obtaining physical parameters required for UHS capacity evaluation based on geological and production data of the target depleted gas reservoir; S2: calculating the cap-rock breakthrough pressure and fault-slip pressure of the UHS based on the cap and fault properties of the target depleted gas reservoir to further estimate the highest operating pressure of the UHS; S3: developing the H2—CO2—CH4 multi-component material balance equation in underground porous media by considering the dissolution of three components in formation water; S4: substituting the parameters obtained from S1 and S2 into the multi-component material balance equation to calculate the proportion of different gas components in the pore space to finally determine the UHS capacity of the target depleted gas reservoir.

Abstract: The present disclosure provides a method and system for determining a helicopter rotor airfoil.

Abstract: The present disclosure provides a method and system for determining a helicopter rotor airfoil.

Abstract: A sensor for monitoring and detecting metals in a sample is provided. Methods and systems for monitoring and detecting metals in a sample are also provided.

Abstract: A single-phase oral care composition is described. The composition comprises both calcium and phosphate sources and is substantially free of water and is substantially free of generated calcium phosphate comprising compounds. The single-phase oral care composition is stable, maintains good viscosity characteristics and avoids the need for compartmentalized packaging.

Abstract: A business object model, which reflects data that is used during a given business transaction, is utilized to generate interfaces. This business object model facilitates commercial transactions by providing consistent interfaces that are suitable for use across industries, across businesses, and across different departments within a business during a business transaction. In some operations, software creates, updates, or otherwise processes information related to Indian employee payroll input, Indian social insurance arrangement, and Indian tax arrangement business objects.

Abstract: A single-phase oral care composition is described. The composition comprises both calcium and phosphate sources and is substantially free of water and is substantially free of generated calcium phosphate comprising compounds. The single-phase oral care composition is stable, maintains good viscosity characteristics and avoids the need for compartmentalized packaging.